TSTP Solution File: GRP568-1 by SNARK---20120808r022

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SNARK---20120808r022
% Problem  : GRP568-1 : TPTP v8.1.0. Bugfixed v2.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run-snark %s %d

% Computer : n013.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Sat Jul 16 11:39:27 EDT 2022

% Result   : Unsatisfiable 0.20s 0.51s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :    5
% Syntax   : Number of clauses     :   36 (  36 unt;   0 nHn;   4 RR)
%            Number of literals    :   36 (  35 equ;   2 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :   61 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(single_axiom,axiom,
    double_divide(double_divide(X,double_divide(double_divide(Y,double_divide(X,Z)),double_divide(identity,Z))),double_divide(identity,identity)) = Y,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_axiom) ).

cnf(multiply,axiom,
    multiply(X,Y) = double_divide(double_divide(Y,X),identity),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',multiply) ).

cnf(inverse,axiom,
    inverse(X) = double_divide(X,identity),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',inverse) ).

cnf(identity,axiom,
    identity = double_divide(X,inverse(X)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',identity) ).

cnf(prove_these_axioms_4,negated_conjecture,
    multiply(a,b) != multiply(b,a),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_these_axioms_4) ).

cnf(6,plain,
    multiply(X,Y) = inverse(double_divide(Y,X)),
    inference('REWRITE',[status(thm)],[multiply,inverse,theory(equality)]) ).

cnf(7,plain,
    inverse(double_divide(b,a)) != inverse(double_divide(a,b)),
    inference('REWRITE',[status(thm)],[prove_these_axioms_4,6,theory(equality)]) ).

cnf(8,plain,
    double_divide(double_divide(X,double_divide(double_divide(Y,double_divide(X,Z)),double_divide(identity,Z))),inverse(identity)) = Y,
    inference('REWRITE',[status(thm)],[single_axiom,inverse,theory(equality)]) ).

cnf(9,plain,
    double_divide(double_divide(X,double_divide(double_divide(Y,inverse(X)),inverse(identity))),inverse(identity)) = Y,
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[8,inverse,theory(equality)]),inverse,theory(equality)]) ).

cnf(10,plain,
    double_divide(double_divide(X,double_divide(inverse(Y),double_divide(identity,inverse(X)))),inverse(identity)) = Y,
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[8,identity,theory(equality)]),inverse,theory(equality)]) ).

cnf(11,plain,
    double_divide(double_divide(X,inverse(double_divide(Y,double_divide(X,inverse(identity))))),inverse(identity)) = Y,
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[8,identity,theory(equality)]),inverse,theory(equality)]) ).

cnf(13,plain,
    double_divide(inverse(X),inverse(identity)) = X,
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[9,identity,theory(equality)]),inverse,identity,theory(equality)]) ).

cnf(14,plain,
    double_divide(double_divide(identity,double_divide(X,inverse(identity))),inverse(identity)) = double_divide(Y,double_divide(double_divide(X,inverse(Y)),inverse(identity))),
    inference('PARAMODULATE',[status(thm)],[9,9,theory(equality)]) ).

cnf(15,plain,
    double_divide(double_divide(identity,double_divide(X,inverse(identity))),inverse(identity)) = double_divide(Y,double_divide(double_divide(X,double_divide(Y,Z)),double_divide(identity,Z))),
    inference('PARAMODULATE',[status(thm)],[9,8,theory(equality)]) ).

cnf(16,plain,
    double_divide(double_divide(double_divide(identity,double_divide(X,inverse(identity))),inverse(identity)),inverse(identity)) = X,
    inference('REWRITE',[status(thm)],[8,15,theory(equality)]) ).

cnf(18,plain,
    double_divide(double_divide(identity,X),inverse(identity)) = double_divide(identity,double_divide(X,inverse(identity))),
    inference('PARAMODULATE',[status(thm)],[9,16,theory(equality)]) ).

cnf(19,plain,
    double_divide(double_divide(double_divide(identity,X),inverse(identity)),inverse(identity)) = double_divide(Y,double_divide(double_divide(X,inverse(Y)),inverse(identity))),
    inference('REWRITE',[status(thm)],[14,18,theory(equality)]) ).

cnf(21,plain,
    double_divide(double_divide(double_divide(identity,X),inverse(identity)),inverse(identity)) = double_divide(Y,double_divide(double_divide(X,double_divide(Y,Z)),double_divide(identity,Z))),
    inference('REWRITE',[status(thm)],[15,18,theory(equality)]) ).

cnf(23,plain,
    identity = inverse(identity),
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[18,identity,theory(equality)]),13,inverse,theory(equality)]) ).

cnf(24,plain,
    inverse(double_divide(X,double_divide(inverse(Y),double_divide(identity,inverse(X))))) = Y,
    inference('REWRITE',[status(thm)],[10,inverse,23,theory(equality)]) ).

cnf(25,plain,
    inverse(double_divide(X,inverse(double_divide(Y,inverse(X))))) = Y,
    inference('REWRITE',[status(thm)],[11,inverse,23,theory(equality)]) ).

cnf(26,plain,
    inverse(inverse(X)) = X,
    inference('REWRITE',[status(thm)],[13,inverse,23,theory(equality)]) ).

cnf(27,plain,
    inverse(double_divide(identity,X)) = double_divide(identity,inverse(X)),
    inference('REWRITE',[status(thm)],[18,inverse,23,theory(equality)]) ).

cnf(28,plain,
    inverse(double_divide(X,double_divide(inverse(Y),inverse(double_divide(identity,X))))) = Y,
    inference('REWRITE',[status(thm)],[24,27,theory(equality)]) ).

cnf(29,plain,
    double_divide(identity,X) = double_divide(Y,inverse(double_divide(X,inverse(Y)))),
    inference('REWRITE',[status(thm)],[19,26,inverse,23,theory(equality)]) ).

cnf(30,plain,
    inverse(double_divide(identity,X)) = X,
    inference('REWRITE',[status(thm)],[25,29,theory(equality)]) ).

cnf(32,plain,
    inverse(double_divide(X,double_divide(inverse(Y),X))) = Y,
    inference('REWRITE',[status(thm)],[28,30,theory(equality)]) ).

cnf(33,plain,
    inverse(X) = double_divide(Y,double_divide(double_divide(X,double_divide(Y,Z)),double_divide(identity,Z))),
    inference('REWRITE',[status(thm)],[21,30,inverse,23,theory(equality)]) ).

cnf(36,plain,
    inverse(X) = double_divide(identity,X),
    inference('PARAMODULATE',[status(thm)],[26,30,theory(equality)]) ).

cnf(37,plain,
    inverse(X) = double_divide(Y,double_divide(double_divide(X,double_divide(Y,Z)),inverse(Z))),
    inference('REWRITE',[status(thm)],[33,36,theory(equality)]) ).

cnf(39,plain,
    inverse(X) = double_divide(Y,double_divide(inverse(X),Y)),
    inference('PARAMODULATE',[status(thm)],[26,32,theory(equality)]) ).

cnf(41,plain,
    X = double_divide(Y,double_divide(X,Y)),
    inference('PARAMODULATE',[status(thm)],[39,26,theory(equality)]) ).

cnf(42,plain,
    X = double_divide(double_divide(Y,X),Y),
    inference('PARAMODULATE',[status(thm)],[41,41,theory(equality)]) ).

cnf(46,plain,
    X = double_divide(Y,double_divide(Y,X)),
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[37,42,theory(equality)]),26,theory(equality)]) ).

cnf(52,plain,
    double_divide(X,Y) = double_divide(Y,X),
    inference('PARAMODULATE',[status(thm)],[42,46,theory(equality)]) ).

cnf(54,plain,
    $false,
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[7,52,theory(equality)]),theory(equality)]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : GRP568-1 : TPTP v8.1.0. Bugfixed v2.7.0.
% 0.11/0.13  % Command  : run-snark %s %d
% 0.13/0.34  % Computer : n013.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Mon Jun 13 21:06:29 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.20/0.45  /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.46  * 
% 0.20/0.46  * 
% 0.20/0.47  #<PACKAGE "SNARK-USER">
% 0.20/0.47  * 
% 0.20/0.47  SNARK-TPTP-OPTIONS
% 0.20/0.47  * 
% 0.20/0.47  ((AGENDA-LENGTH-LIMIT NIL) (AGENDA-LENGTH-BEFORE-SIMPLIFICATION-LIMIT NIL)
% 0.20/0.47   (USE-HYPERRESOLUTION T) (USE-UR-RESOLUTION T) (USE-PARAMODULATION T)
% 0.20/0.47   (USE-FACTORING :POS)
% 0.20/0.47   (USE-LITERAL-ORDERING-WITH-HYPERRESOLUTION 'LITERAL-ORDERING-P)
% 0.20/0.47   (USE-LITERAL-ORDERING-WITH-PARAMODULATION 'LITERAL-ORDERING-P)
% 0.20/0.47   (ORDERING-FUNCTIONS>CONSTANTS T) (ASSERT-CONTEXT :CURRENT)
% 0.20/0.47   (RUN-TIME-LIMIT 300) (LISTEN-FOR-COMMANDS NIL)
% 0.20/0.47   (USE-CLOSURE-WHEN-SATISFIABLE T) (PRINT-ROWS-WHEN-GIVEN NIL)
% 0.20/0.47   (PRINT-ROWS-WHEN-DERIVED NIL) (PRINT-UNORIENTABLE-ROWS NIL)
% 0.20/0.47   (PRINT-ROW-WFFS-PRETTILY NIL) (PRINT-FINAL-ROWS :TPTP)
% 0.20/0.47   (PRINT-OPTIONS-WHEN-STARTING NIL) (USE-VARIABLE-NAME-SORTS NIL)
% 0.20/0.47   (USE-PURITY-TEST T) (USE-RELEVANCE-TEST T) (DECLARE-TPTP-SYMBOLS1)
% 0.20/0.47   (DECLARE-TPTP-SYMBOLS2))
% 0.20/0.47  * 
% 0.20/0.47  "."
% 0.20/0.47  * 
% 0.20/0.47  ; Begin refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-06-13T21:06:29
% 0.20/0.47  ; Running SNARK from /davis/home/graph/tptp/Systems/SNARK---20120808r022/Source/snark-system.lisp in SBCL 1.0.12 on n013.cluster.edu at 2022-06-13T21:06:29
% 0.20/0.48  
% 0.20/0.51  ; Recognized possible right inverse assertion (= |identity| (|double_divide| ?X (|inverse| ?X))).
% 0.20/0.51  
% 0.20/0.51  #||
% 0.20/0.51  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.51  % SZS output start Refutation
% See solution above
% 0.20/0.52  ||#
% 0.20/0.52  
% 0.20/0.52  ; Summary of computation:
% 0.20/0.52  ;       201 formulas have been input or derived (from 24 formulas).
% 0.20/0.52  ;        54 (27%) were retained.  Of these,
% 0.20/0.52  ;           35 (65%) were simplified or subsumed later,
% 0.20/0.52  ;           19 (35%) are still being kept.
% 0.20/0.52  ; 
% 0.20/0.52  ; Run time in seconds excluding printing time:
% 0.20/0.52  ;     0.001   2%   Read assertion file          (1 call)
% 0.20/0.52  ;     0.000   0%   Assert                       (5 calls)
% 0.20/0.52  ;     0.008  18%   Process new row              (194 calls)
% 0.20/0.52  ;     0.000   0%   Resolution                   (46 calls)
% 0.20/0.52  ;     0.002   4%   Paramodulation               (23 calls)
% 0.20/0.52  ;     0.002   4%   Forward simplification       (164 calls)
% 0.20/0.52  ;     0.006  13%   Backward simplification      (54 calls)
% 0.20/0.52  ;     0.003   7%   Ordering                     (391 calls)
% 0.20/0.52  ;     0.000   0%   Sortal reasoning             (32 calls)
% 0.20/0.52  ;     0.000   0%   Purity testing               (1 call)
% 0.20/0.52  ;     0.023  51%   Other
% 0.20/0.52  ;     0.045        Total
% 0.20/0.52  ;     0.049        Real time
% 0.20/0.52  ; 
% 0.20/0.52  ; Term-hash-array has 153 terms in all.
% 0.20/0.52  ; Feature-vector-row-index has 0 entries (0 at peak, 0 added, 0 deleted).
% 0.20/0.52  ; Feature-vector-row-index has 1 node (1 at peak, 1 added, 0 deleted).
% 0.20/0.52  ; Path-index has 57 entries (63 at peak, 196 added, 139 deleted).
% 0.20/0.52  ; Path-index has 305 nodes (320 at peak, 565 added, 260 deleted).
% 0.20/0.52  ; Trie-index has 57 entries (63 at peak, 196 added, 139 deleted).
% 0.20/0.52  ; Trie-index has 160 nodes (269 at peak, 819 added, 659 deleted).
% 0.20/0.52  ; Retrieved 328 generalization terms in 674 calls.
% 0.20/0.52  ; Retrieved 103 instance terms in 58 calls.
% 0.20/0.52  ; Retrieved 303 unifiable terms in 149 calls.
% 0.20/0.52  ; 
% 0.20/0.52  ; The agenda of rows to process has 3 entries:
% 0.20/0.52  ;     3 with value 20
% 0.20/0.52  ; The agenda of rows to give has 6 entries:
% 0.20/0.52  ;     1 with value (4 17)          1 with value (4 22)           1 with value (4 23)
% 0.20/0.52  ;     3 with value (4 20)
% 0.20/0.52  Evaluation took:
% 0.20/0.52    0.05 seconds of real time
% 0.20/0.52    0.044707 seconds of user run time
% 0.20/0.52    0.005075 seconds of system run time
% 0.20/0.52    0 calls to %EVAL
% 0.20/0.52    0 page faults and
% 0.20/0.52    5,097,688 bytes consed.
% 0.20/0.52  :PROOF-FOUND
% 0.20/0.52  ; End refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-06-13T21:06:29
% 0.20/0.52  :PROOF-FOUND
% 0.20/0.52  * 
%------------------------------------------------------------------------------